623071049 has 2 divisors, whose sum is σ = 623071050. Its totient is φ = 623071048.

The previous prime is 623071027. The next prime is 623071067. The reversal of 623071049 is 940170326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374693449 + 248377600 = 19357^2 + 15760^2 .

It is a cyclic number.

It is not a de Polignac number, because 623071049 - 2²⁰ = 622022473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (623071349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311535524 + 311535525.

It is an arithmetic number, because the mean of its divisors is an integer number (311535525).

Almost surely, 2^623071049 is an apocalyptic number.

It is an amenable number.

623071049 is a deficient number, since it is larger than the sum of its proper divisors (1).

623071049 is an equidigital number, since it uses as much as digits as its factorization.

623071049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 623071049 is about 24961.3911671605. The cubic root of 623071049 is about 854.1074776018.

The spelling of 623071049 in words is "six hundred twenty-three million, seventy-one thousand, forty-nine".